Feeding molten glass



' July 21, 1925.

K. E. PEILER FEEDING MOLTEN GLASS Filed Nov. 18, 1924 fizz/avatar.- IarZ EPQZZV Patented July 21, 1925.

UNITED STATES,

PATENT oer-ice.- I

KARL E. PEILIER, or wns'r nan'rronn, oomrnc'rrou'r, As'srenon 'ro HARTFORD- EMPIRE COMPANY, or nan'rnonn, QONNECTICUT, A CORPORATION or DELA- WARE.

FEEDING MOLTEN GLASS.

Application filed November 18, 1924. Serial No. 750,544.

To .aZZ whom it may concern:

Be it known that I, KARL'E. Pnr'nna, a citizen of the United States, residing at est Hartford, in the county of Hartford and-State of Connecticut, have invented certain new and useful Improvements in Feeding- Molten Glass, of which the following is a specification.

My invention relates to the art of feeding molten glass and it has special reference to the glass-feeding system in which molten glass is delivered from a container in compact suspended mold charges through a downwardly opening 'dischargeoutlet.

One object of my invention is to provide a novel and effective method and apparatus for applying heat in a symmetrical manner at the discharge outlet of a glass feeder.

More specifically, "the object of my invention is to provide a glass feeder havin a burner below the discharge outlet, fills burner being revolved about the axis of the discharge outlet for the purpose of producing symmetrical heating effects upon the glass or upon the out-let Walls, and also for the purpose of producing symmetrical dynamic effects upon the glass, ifsuch dynamic effects are desired. The flame of the burner may be caused to play upon the discharge orifice adjacent to the issuing glass, or upon the glass itself. and if the flame is caused to play upon the glass, it may be employed for heating the issuing glass, or for re-heating the stub of glass which remains after the severing operation, or for retarding the descent of the glass through the orifice, or for checking or reversing the movement of the glass.

Various; combinations of these eflects may also be employed, as will be more fully e xplained below.

In order to permit the discharged glass to fall freely when severed, the rotary burner may either be swung periodically out from under the discharge orifice and back again, or the burner may be mounted out of the path of the descendlng glass on .a rotary support whichis also out of-the path of the glass.

In the accompanying drawing, Figure 1 is a vertical sectional view, with parts in elevation, showing a construction suitable for carrying out my invention, the burner being adapted to be swung periodically into and out of position below the glass discharge a glass feeder.

ermanently orifice; and Fig. 2 is a vertical sectional view, with parts in elevation, showing a modified construction in which the burner and its rotatable support aremounted permlanently out of the path of the descending g ass.

Fig. 1 of the drawing shows diagrammatically a portion of the discharge chamber of portion of the bottom wall of the discharge chamber, and the numeral 3 indicates an orifice member which defines a discharge orifice 4,.through which glass 5 is discharged from the container. diagrammatically in open position, and are adapted to close periodically beneath the orifice 4 to sever mold charges of glass suspended beneath the orifice.

A burner 7 is mounted below the discharge orifice 4 for revolution about the vertical axis of this orifice; The burner 7 is supplied with an adjustable mixture of air and gas through a channel 8 formed in a support 9 in which the vertical portion 10 of the burner 7 is journaled for rotation. Suitable packing 11 may be employed for preventing leakage between the channel 8 and the burner member 10. The connections for supplying gas and air to the burner are shown somewhat conventionally, the gas being supplied through a pipe 12 controlled by a valve 13, and the air being supplied through a pipe 14, controlled by avalve 15.

The burner 7 is revolved at a speed sufiicient to produce the desired effects by power supplied from a shaft 20 through gears 21 and 22.

The support 9 which carries the burnerand its drive gear 22 is carried on a bracket arm 18, which is pivoted to swing about the axis of the drive shaft 8. As shown, the arm to swing the burner 7 out from under the orifice 4 before the operation of severing the glass is completed, and then to swing the burner back again as soon as desired, after the charge of glass has dropped away from the feeder.

The burner 7, as shown, is inclined at such an angle that its flame impinges upon the glass in the orifice 4. Tins angle may be The numeral 2 indicates a.

Shears 6 are indicated nee varied, either by replacing the burner nozzle with other nozzles having dlflGKGllt-lllcllnfiw 'tions, or by providing" a suitable joint in the burner nozzle for adjusting its angle. By these means, the flame may be caused to impinge upon the orifice, instead of upon the glass, or upon both the'orifice and the glass, as may be desired.

The apparatus shown in Fig, 2 differs from that shown in Fig; 1., that the burner and its support are mounted permanently out of the path of the descending glass, and, therefore, are not required to be swung periodically into and out of position beneath the discharge orifice. Fig. 2 shows diagrammatically at 25 a portion of a glass container having discharge orifice 2.6, through which the glass, indicated at 27, issues in the form of periodic discharges. A burner nozzle 28 mounted below the orifice on. a rin that is rotatably mountedon a fixed F ort 3C, The burner nozzle 28 is with air gas through a vertical v communicating with a port 3? in on, in urn, communicates with a continuous "port zoo-ye 38 the support 30. Air and groove 83 through a suitable mixer, which is shown somew it conventionally as including a supply pipe 34 controlled by a valve 35, and an air supply pipe 8% controlled by a valve 3'3,

Roller bearings 38 are provided for allowing easy rotation of the burner ring 29, and packing" rings- 39 provided. to insure a gas-tight joint between the rotating and stationary parts, i the purpose of rotating i burn-z Ling, this ring is pro vided with gear teeth 40 meshing with a drive gear il. power shaft 42.

As described in connection with Fig, l, inclination of the burner nozzle 2 3 of may be made adjustable so as to cause the flame 1 n this nozzle to immany ways, one 2, where the Us the combustion r the burner is havin an open i be roe ed periewer connections in crease anddeci'ease air to the burner,

supplied to the port naratus shown means,

cally through the discharge orifice 4, the discharge of the glass being either interrupted by the dynamic effectof the flames from the burner 7 beneath the orifice, or,

being controlled otherwise, as may be desired, The burner mounting may be swung clear' of the discharge orifice while the glass is issuing but should in any event be swung vclear before the glass is severed by the shears 6. After the glass drops away from the feeder, the burner is swung back beneath the orifice, and the revolution of the burner about the axis of the orifice 4 causes the flame to be applied equally, either to all parts of the orifice upon which it impinges, or to all parts of the glass upon which it impinges, This insures an even heating efiect, and prevents one side of the glass "from being hotter than another side. As

of the glass, or to reverse it in the orifice. 9

When the dynamic effect of the burner is thus relied upon to check or reversethe movementof the glass, other discharge-controlling means, in the nature of plungers or the like, may be entirely dispensed with.

The apparatus of Fig. 2 opcra' s in the same manner as that of Fig. 1, except that in the structure of 2, the burner remains permanently in the position shown, the glass being allowed to drop through the burner ring 29.,

If the burner were not rotated, any attempt to produce d' iamio effects through the high velocity of the burner flame would tend to cause the glass to flow up into one side of i orifice while it continues to descend the other side, thus preventing proper delivery of the glass. This is illustrated in Fig, 1, where the line A shows the s ps of the severed stub of glass, Upon the the burner flame, without r ib A would assume the dotted line B, of the high-velocity peed. according to the effect of the flame uted and the stub is l the line the burner in strength by and by one. burner rotated j metrical meniscus,

i during lUU which the burner is applied. The period of application may also be shifted in timelremy co-pending applications for Letters Patent, Serial N o. 823,69 l,filed March lO, 1914, and'Serial No. 747,503, filed November 3, 1924. i i

In arelated application filed Nov. 5, 1924-, Serial No. 747,973,'I have disclosed theuse of a rotating flame for the purpose of reheating glass p'arisons or other solid glass articles.

The structures shown in the accompanying drawing are well suited for carrying out my invention, but it-will be understood that numerous other arrangements. may be em ployedwithin the scope ofthe appended. claims. 1 v

I claim as my invention:

.1. The method of feeding molten glass that comprises causing the glass to issue from a discharge outlet, and directing toward the said 'discharge outlet a revolving flame capable of symmetrically modifying the temperature at the said outlet.

2. The method "of feeding molten glass that comprises causing the .glassto Issue ,from a discharge outlet, and directing toward the said outlet a flame revolving about the central axis of the said outlet and capable otmodifying the temperature of the glass at the said outlet.

3. The method of feeding molten glassthat comprises causing the glass to issue from a downwardly opening discharge outlet, and directing toward the said outlet a flame revolving about the vertical axis of the said outlet and capable of modifying the temperature of the glass at the said outlet.

- 4. The method of feeding molten glass that comprises causing the glass .to issue from a downwardly opening discharge outlet, and periodically modifyin the rate of discharge of the said glass by directing upon the glass at the said outlet a d namicall -acting fiame revolvingabout tii e vertica axis of said outlet.

I 5. The method of feeding molten glass lass to issue oggning ischarge outfrom a downwardly ing theratefof dislet, periodically modi charge of the said glass by directing upon the glass at the said outlet a. dynamicallyopening comprising a container for.

operations, applying to the outleta flame revolving around thevertical axis of the said outlet.

7, The method. of feeding molten glass, that comprises causing the glass to issue from a container through a downwardly opening discharge outlet, periodically sev ering mold charges fromtheissuing glass, and in theintervals between said severing operations, applying to the glass in the said outlet a flame revolving around the vertical axis of the said outlet. 7 I

8. The method of feeding molten glass, that comprises causing ,theglass to issue from a container through a downwardly discharge outlet, periodically severing mold charges from t e issuing glass, and, in the intervals between said severing operations, retarding the issue of glass from said outlet by directing upon the glass at v the said outlet a. dynamically-active flame revolving about the vertical axis of said outlet.

9. Apparatus for feeding molten glass, comprising a container for the glass having a discharge outlet, and'means for directin a revolving flame toward the said outlet.

10. Apparatus for feeding molten glass,

comprising a container for the glass hav ing a discharge outlet, meansfor directin a flame toward the said outlet, and means %or revolving the saidflame about the central axis of the said outlet."

i 11 Apparatus for feedingmolten glass,

a downwardly opening discharge outlet, andmeans for directing a revolving flame.

toward the .said outlet.

12. Apparatus for feeding molten glass, comprising a container for the glass having a downwardly I opening discharge outlet, means for directing a flame toward said. outlet, and means for revolving the said flame about the vertical axis of the said outlet. f

.13. Apparatus for feeding molten glass, comprising a container for the glass having e glass having a downwardly opening discharge outlet, and

a burner for. 'directin flame toward said outlet, the said burner eing mounted-below the said outlet and being revoluble around the vertical axis of the said outlet.

14. Apparatus for feeding molten lass, comprising a container for the glass aving a downwardly opening discharge outlet,shears for severing mold charges from the glass discharged from said outlet, and a burner for directing flame toward said out let, the said burner being mounted below the said outlet and being revoluble aroundshears for severing mold charges from the' glass discharged from said outlet, a burner for directing flame toward said outlet, the said burner being mounted below the said outlet and being revoluble around the vertical axis of the said outlet, and the flame from the said burner being capable of acting dynamically upon the glass to modify the discharge of the glass through the said outlet. a 1 y 16. Apparatus for feeding molten glass,

comprising a container for the glass having .adownwardly opening'discharge outlet, a burner below said outlet, a support for the said burner, the said support heingmovable to bring the said burner into and out ofposition beneath the said outlet, andgearing for revolving the said burner around a vertical axis.

, 17( Apparatus for feeding moltenglass, comprising a container for the glass having a downwardly opening discharge outlet, shears for severing mold charges from the glass issuing from the said outlet, a/burner below the said outlet having its nozzle inclined and directed toward said-outleua rotatable support for said burner noz zle, means'for moving said'suppor't periodically to bring said burner into and'out of position beneath the said outlet, and gearingfor rotating the said support r Signed at Hartford, Conn, thisl tth day of November, 1924. I KARL E. FEILER 

